block: default to 0 minimal / optiomal I/O size

Currently we set them to 512 bytes unless manually specified.  Unforuntaly
some brain-dead partitioning tools create unaligned partitions if they
get low enough optiomal I/O size values, so don't report any at all
unless explicitly set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Christoph Hellwig 2010-07-23 09:35:04 +02:00 committed by Kevin Wolf
parent 6c6b6ba20a
commit 55459498b2

View File

@ -243,7 +243,7 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
_conf.logical_block_size, 512), \
DEFINE_PROP_UINT16("physical_block_size", _state, \
_conf.physical_block_size, 512), \
DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 512), \
DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 512)
DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \
DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0)
#endif /* BLOCK_INT_H */